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Finding the Fourth Proportional to 14,592.86, 20,130.93 and 8,621.64

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Solution

The fourth proportional to 14,592.86, 20,130.93 and 8,621.64 is: 11,893.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,592.86 : 20,130.93 = 8,621.64 : x
  2. Step 2: Convert to fraction form
    14,592.86/20,130.93 = 8,621.64/x
  3. Step 3: Cross multiply
    14,592.86x = 20,130.93 × 8,621.64
  4. Step 4: Simplify right side
    14,592.86x = 173,561,631.33
  5. Step 5: Solve for x
    x = 173,561,631.33/14,592.86
  6. Step 6: Final answer
    x = 11,893.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.